Messages in this thread | | | Date | Wed, 12 Mar 2008 23:32:52 -0700 (PDT) | From | david@lang ... | Subject | Re: [ANNOUNCE] Ramback: faster than a speeding bullet |
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On Wed, 12 Mar 2008, Daniel Phillips wrote:
> On Wednesday 12 March 2008 22:45, David Newall wrote: > >> Your idea seems predicated on throwing large amounts of RAM at the >> problem. What I want to know is this: Is it really 25 times faster than >> ext3 with an equally huge buffer cache? > > Yes.
this I don't understand. what makes your approach 25x faster?
looking at the comparison of a 500G filesystem with 500G of ram allocated for a buffer cache.
yes, initially it will be a bit slower (until the files get into the buffer cache), and if fsync is disabled all writes will go to the buffer cache (until writeout hits)
I may be able to see room for a few percent difference, but not 2x, let alone 25x.
David Lang
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